Electric-light burglar-alarm indicator



(Nomodl.) 2 sheets-Sheet 1.

R. PAGKBR & I. E. COCHRAN, Jr. BLBGTRIG LIGHT BURGLAR ALARM INDICATOR.

No. 393,657. v Patented Nov. 27, 1888.4

(No Model.) 2 Shets-Sheet -2. R. PACKER & I. E. COCHRAN, Jr.

LLECITRIC LIGHT BU'RGLAR ALARM INDICATOR.

No. 393,657. Patelnzed Nov. 27,' '1888.

UNITED STATES PATENT CEEICE.

RICHARD PACKER AND ISAAC E. COCHRAN, JR., OF CHESTER, PENNSYLVANIA.

ELECTRIC-LIGHT BURGLAR-ALARM INDICATOR.

SPECIFICATION forming part of Letters Patent No. 393,657, dated November 27, 1888.

Application filed July 6. 1887. Serial No. 243.591.

To all whom it may concern:

Beit known that we, RICHARD PACKER and Isaac ENGLE COCHRAN, Jr.,of Chester, county of Delaware, State of Pennsylvania, have invented a new and useful Improvement in Electric Light Burglar-Alarm Indicators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making-part of this specitication.

Our invention relates lto improvements in electric burglar-alarms; and it consists ofthe peculiar combination and arrangement of devices, as will be hereinafter fully described, and particularly pointed out in the claims.

The object of our invention is to automatically illuminate an incandescent lamp simultaneously with the sounding of the bell in the alarm circuit, the bell or alarm mechanism and -incandescent lamp being each included in separate distinct circuits, which are operated continuously and independently of each other (after the alarm-circuit has been completed or closed by the door or window connection) by A further object of our invention is to provide a secondary lamp circuit, which is connected at its terminals, primary lamp and alarm circuit, and a switch, whereby the current in the primary lamp-circuit can be caused to traverse the secondary lamp-circuit, which runs through one or more apartments of the house and includes one or more electric lamps of the incandescent pattern, so that after the lamp in the primary lampcircuit has been operated and the alarm mechanism sounded the lamp in the apartment from which the alarm is sprung can be readily illuminated.

In the accompanying drawings, Figure l is a view illustrating a single burglar-alarm system embodying our invention. Fig. 2 is a view showing a series of circuits which run through different apartments and having the incandescent lamps in the primary circuit (No model.)

thereof bearing distinguishing characters. Fig. 3 is a detail horizontal sectional View on the line x x of Fig. 1.

We will now proceed to describe our invention in connection with the drawings, in which like letters of reference denote corresponding parts in all the figures.

A and B designate primary independent circuits, each of which has a battery, C C', respectively, for operating the primary circuits independently of each other. The primary circuit A includes therein a bell and its operating mechanism D, and the circuitB includes an electric lamp, E, of the incandescent type, these circuits A and B being hereinafter termed the primary alarm-circuit and the primary lamp-circuit, for the purpose of distinguishing them from one another and of referring to the same. The alarm mechanism and incandescent lamp of the two primary circuits may be of any preferred pattern, and we therefore will not particularly describe herein the construction of the parts thereof, and the batteries, which may be of the storage or other pattern, oi' the primary circuits operate the respective devices included in the said circuits independently of each other.

E is the connection, which is applied to either 'the door, Window, or other place Where unwarranted interference is likely to occur,y and this connection is included in theprimary alarm-circuit, so that when the door, te., is

opened,v or forced the alarm-circuit is completed to cause a current from the battery C toV traverse the said circuit. In lieu of the door or window connection of the pattern shown thereby and serve as an armature, one end of i IOO runs from the latter to thc alarm mechanism, and thence back to the battery C, thereby completing the alarm-circuit.

One of the wires, b, ol' the primary l-.nnpcircuit is connected to the vertical insulated pin of the relay, and the other Wire, b', of the same circuit is connected to the contacthase of the relay, so that when thc current of the alarm-circuit encrgizes the helices of the relay the armature is depressed to canse the free end of the armature to contact with the insulated pin, and thereby close the primary lamp-circuit, the current from the battery ol' which traverses the wire [1Q-thence through the base of the relay and armature thereof, and through the wire b, connected to the insulated pin f', to the lamp E, and from the latter te the battery O, which thus completes the primary lamp-circuit.

Each of the primary circuits A B has a cutout switch, H or H', by means of which the currents in either circuit can beindependently out out to extinguish the lamp in the primary lamp-circuit, or stop the alarm in the alarmcircuit, these switches being entirely independent of one another, so that either circuit can be continued in use without hinderance from the other circuit. The switch H' in the primary alarm-circuit is preferably connected with the return battery-wire at some distance from the relay, while on the other hand the switch H' of the primary lamp-circuit is connected to the wire b at a point near where the wire is connected to the relay, for a purpose.

which will presently appear.

I designates asecondary lamp-circuit, which runs to the apartinentin which the connection or mat E is located, said circuit having an incandescent lamp, I, included therein, which is located at a suitable point in theapartment io illuminate the latter. One of the terminals of the secondary lamp-circuit I is arranged in close proximity to the switch H of the primary lamp-circuit, so that the switch can be caused to contact with said terminal to cause the current from the primary lamp-circuit to traverse the wires of the secondary lamp-circuit, and the other terminal of the circuit I'is connected at a suitable point to the return batterywire of the primary lamp-circuit.

Vhen the switch H of the primary lampcircuit is operated to close the same, the cnrrent from the battery traverses through the lamp E included in the said circuit; but when the primary lamp-circuit is broken by opening the switch H the current from the battery C traverses the secondary lamp circuit through the lamp therein to illuminate the apartment from which the alarm is sprung, and is thence returned to the battery to complete the secondary circuit through the return-wire of the primary lamp-circuit. By these devices the attendant is notitied of the unwarranted interference with the dwelling, and he is enabled to illuminate the apartment from which the alarm is sprung with ease and entire safety.

.Tn Fig. 2 we have shown a series of circuits having the lamps in the primary circuits provided with distinguishing igures, asj, characters, words, Ste., to denote the apartment with which they are connected. The lamp and bell ofthe two primary circuits are located in a sleeping-apartment or other place to awaken a servant or watchman and notify him of the unwarranted interference with the building and the peint where the disturbance is caused.

lhe operation of our invention is obvious from the foregoing description. Upon closing the circuit in the primary alarm-circuit a current from the battery C traverses the helices in the relay to energize the same and continues to the alarm mechanism to operate the same. The armature of the relay is attracted by the helices to contact with the insulated pin j", and thus close the primary lamp -circuit. rlhe switch HI in the latter circuit being closed, a current from the battery O traverses the primary lamp-circuit, and thence to the battery by the return-wire. Should the attendant desire, the switch H may be operated to break the primary lampcircuit and switch the current around the secondary lamp-circuit to illuminate the lamps therein,and thus light up the apartment where the burglary is attempted.

XVe would state that while we deem the' mechanism and devices herein shown and described as best adapted for carrying our invention into practice, still we do not desire to confine ourselves to the exact construction and arrangement oi' devices, as we are aware that changes can be made therein without departing from the spirit of our invention.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In an electric burglar alarm, substantially as described, the combination, with two primary circuits, one having an alarm mechanism and the other an incandescent lamp, and batteries for energizing said circuits, of a secondary lamp-circuit including an incandescentlamp, and a switch for diverting the current from one of the primary circuits to said secondary lamp-circuit, substantially as described.

2. ln an electric burglar-alarm, thc'combination, with two primary circuits, each having a battery and one including an audible alarm mechanism and the other an incandescent lamp, a relay, and a door or window connection included in one of the circuits and adapted to close the same, ofa secondary lampcircuit having an incandescent lamp included therein, and a switch for diverting the current ofthe primary lamp-circuit to the secondary lamp-circuit,as and for the purpose described.

In testimony whereof we have hereunto set our hands this 15th day of June, A. D. 1887.

RICHARD IACKEP.

lllf'itnesscs: l. E. COCHRAN, JR.

H. B. BLACK, W. WARD, Jr.

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